Schematics of a VPS-LCD for an IB energy of 700 eV, an incident angle of , and an exposure time of 60 s. The inset shows the image of the patterned ITO electrodes with the alignment direction on the bottom glass substrate. The width of the patterned ITO electrodes is and the gap of the electrodes is .
Pretilt angles of the IB-irradiated homeotropic PIs as a function of the IB exposure time, for an exposure intensity and irradiation angle of 700 eV and , respectively. The results include error values.
XPS spectra for the peaks from the homeotropic PIs after IB irradiation at exposure times of (a) 0 s, (b) 30 s, and (c) 60 s for an exposure intensity and IB irradiation angle of 700 eV and , respectively.
(a) The voltage-transmittance curve of the VPS-LCD at an IB energy of 2500 eV, incident angle of , and exposure time of 60 s, with images also shown as a function of applied voltage. The pretilt angle of the cell was approximately . (b) The rise times of the two LCDs at an IB energy of 700 eV, incident angle of , and exposure time of 60 s.
Light transmission as a function of voltage for (a) VPS-LCDs with various exposure times and (b) IPS-LCDs. The inset represents the off-state brightness of each VPS-LCD (7 s with , 15 s with , 25 s with , 30 s with , and 60 s with pretilt angles).
Simulations of transmittance (%) using (a) a LC cell gap with a fixed pretilt angle of and (b) a pretilt angle with a fixed cell gap of . The inset represents the plot of birefringence vs pretilt angle.
(a) RT as a function of applied voltage for VPS-LCDs with various exposure times. (b) Comparison among the total RTs with VPS-LCDs. The inset to Fig. 7(b) shows the rise and fall times.
Pretilt angles and total RT characteristics of VPS LCDs for various exposure times and energy.
Article metrics loading...
Full text loading...